Machine for cutting up ice in streets, &amp;c.



APPLIOA TIQN FILED QTULY 31, 1902.

2 SHEETS-SHEBT 1.

N0 MODEL.

Inventor-J Witnesses.

"NITEDY STATES PATENT OFFIE.

CARL AUGUST GREEN, OF KATRINEHOLM, AND HANS EDUARD LAR SSON, OF STQCKHOLM, SWEDEN.

MACHINE FOR CUTTING UP ICE IN STREETS, 8 c.

SPECIFICATION forming part of Letters Patent No. 721,364, dated February 24, 1903.

Application filed July 31, 1902.

To all whom it may concern:

Be it known that we, CARL AUGUST GREEN, residing at Katrineholm, and HANS EDUARD LARSSON, inspector, residing at Tulegatan25, Stockholm, Sweden, both subjects of the King of Sweden and Norway, have invented certain new and useful Improvements in Machines for Cutting Up Ice in Streets and in other Frequented Places 5 and we declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to whichit appertains to make and use the same.

The invention is shown in the annexed drawings, in whichi Figure l is an elevation of a .machine constructed according to this invention, and Fig"; 2 is a top plan View of the same. 7

A frame 0, provided with rear wheelsin the present instance traction-wheels-or a cart with a fore sled 19, carries a forked lever comprising the hand-controlled arm e, the rock-shaft g, to which it is keyed, and the two arms f, one at each end of saidrock-shaft and rigid therewith. The lower arms f'of the lever carry on a shaft h a drum is, provided with teeth 2', extending from side to side of the machine and rotated in suitable manner. The teeth are distributed on the circumference of the drum in such manner that a uniform cutting up of the ice takes place as the drum rotates. The drum 7c,and in consequence thereof the teeth, maybe adjusted at a greater or less distance from the ground by means of a spring-pressed dog Z, pivoted to the leverarm eand engaging with the teeth of a toothed bar or toothed sector m,arranged on the frame. The lever e f is acted upon by means of the handle n, the adjustment of the pawl Zin the respective positions being facilitated by thumb-lever o and link 19. (See Fig. 2.) The drum k may be caused to rotate by means of any suitable arrangement-for instance, the gear-trains shown on the drawings, in which the motion of the wheel-shaft r is transmitted to the drum by means of the chain belts, the chain-wheels t a, mounted, respectively, on wheel-shaft r, and counter-shaft z, andthe spur-Wheels c w a: y. The chain-wheel u runs loose upon shaft 2', but may be made fast therewith by means of lever 2 with forked Serial No. 117,799. (No model.)

arm 3, working on vertical pivot-pin 4: and

yoking into thegrooved hub of sliding clutch 5. The spur-wheel o is fixed to said shaft 2, so as to be revolved whenever the chain-wheel is locked thereto. The spur-wheels o and ac are fixed to each other, but revolve loosely on shaft 9, and spur-wheel y is fast to the shaft 71. of the drum.

A gatherer or collector 1, of a suitable shapefor instance, in the shape of a chute taperingrearward, may, if desired, be secured to the frame 0 in such a manner that its fore part suited to the width to be cut up collects the ice pieces cut up and delivers them as a narrow ridge at the narrow rear part of the chute, so that it will be easier to shovel.

:them up. The bottom of the chute-formed plate 1 rises rearward and then again descends rearward, so that the ice pieces thrown beyond the highest point of the said bottom by the teeth of the roll will slide down on the street, &c., at the outlet or rear part of the chute.

Having thus described our invention, what we'claim, and desire to secure by Letters Pa tent,is

1. In a machine of the character described, the combination of'a carrying-frame, running supports therefor, aseries of movable cuttingteeth extending from side to side of the machine, means for actuating said teeth, and a gatherer extending coordinately with and immediately behind the teeth and narrowing to the rear to deposit the ice in a narrow ridge.

2. In a machine of the character described, the combination of a carrying-frame, running supports therefor, a series of movable cutting teeth, extending from side to side of the machine, means for actuating said teeth, and a gatherer extending coordinately with and immediately behind said teeth, rising convergingly to the rear and finally descending to discharge the broken ice in a compact ridge.

3. Ina machine of the character described, the combination of a carrying-frame, running supports therefor, a drum extending'from side to side of the machine, cutting-teeth carried by said drum, means for revolving the drum, and a gatherer extending coordinately with and immediately behind said drum and converging to the rear.

4. In a machine of the character described, the combination of a carrying-frame, a rockshaft mounted in said frame, a hand-lever secured to said rock-shaft, arms rigid with and projecting downward from each end of said shaft, a drum mounted in said arms, cuttingteeth in said drum, means for locking the hand-lever in any desired position, and means for rotating said drum.

5. In a machine of the character described, the combination of a carrying-frame, a rockshaft mounted on said frame, a hand-lever secured to said rockshaft, arms rigid with and projecting downward from each end of said shaft, a drum mounted in said arms, cuttingteeth on said drum, means for locking the hand-lever in any desired position, a transmission-Wheel on the rock-shaft, and a Wheel on the drum-shaft driven thereby.

6. In a machine of the character described,

the combination of a carrying-frame, tractionwheels supporting the rear thereof, a slide supporting the front thereof, a rock-shaft journaled in the frame, a hand-lever fixed thereto, arms rigid with and projecting downward from each end of said shaft, a drum mounted in said arms, cutting-teeth on said drum, means for locking the hand-lever in any desired position, a chain-wheel on the shaft of the traction-wheels, a chain-wheel on a counter-shaft, a connecting-belt, and ageartrain connecting with a spur-gear on the shaft of the drum.

In testimony whereof We affix our signatures in presence of two witnesses.

CARL AUGUST GREEN. HANS EDUARD LARSSON. Witnesses:

Ens. L. VARDLINDK, CHAR. FREDBORG. 

